Dynamics and Depletion in Thermally Supercritical Starless Cores
Astrophysics of Galaxies
2015-05-13 v2
Abstract
In previous studies we identified two classes of starless cores, thermally subcritical and supercritical, distinguished by different dynamical behavior and internal structure. Here we study the evolution of the dynamically-unstable, thermally-supercritical cores by means of a numerical hydrodynamic simulation that includes radiative equilibrium and simple molecular chemistry. We use our non-LTE radiative transfer code MOLLIE to predict observable CO and N2H+ line spectra, including the non-LTE hyperfine ratios of N2H+, during the contraction. These are compared against observations of the starless core L1544.
Keywords
Cite
@article{arxiv.0908.2400,
title = {Dynamics and Depletion in Thermally Supercritical Starless Cores},
author = {Eric Keto and Paola Caselli},
journal= {arXiv preprint arXiv:0908.2400},
year = {2015}
}
Comments
accepted for publication in MNRAS